a hormone synthesized in and secreted by the anterior lobe of the pituitary gland that promotes growth of the long bones in the limbs and increases the synthesis of protein essential for growth Also called somatotrophin, human growth hormone
A polypeptide hormone secreted by the anterior portion of the pituitary gland that promotes growth by stimulating protein synthesis. Growth hormone also acts on the liver to produce peptides called somatomedins, which stimulate growth of bone, cartilage, and muscle. Also called somatotropin.
Any of various natural or synthetic substances that regulate the growth of plants. Auxins in plants are growth hormones.